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[jira] [Closed] (DERBY-4962) Create a table function which efficiently migrates data out of foreign databases and which can be used for ongoing data integration

Date

Tue, 16 Aug 2011 19:18:27 GMT

[ https://issues.apache.org/jira/browse/DERBY-4962?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Rick Hillegas closed DERBY-4962.
--------------------------------
Resolution: Fixed
> Create a table function which efficiently migrates data out of foreign databases and
which can be used for ongoing data integration
> -----------------------------------------------------------------------------------------------------------------------------------
>
> Key: DERBY-4962
> URL: https://issues.apache.org/jira/browse/DERBY-4962
> Project: Derby
> Issue Type: Improvement
> Components: Tools
> Reporter: Rick Hillegas
> Attachments: ForeignTableVTI.java
>
>
> DDLUtils and other tools are good at copying the shape of foreign schemas into Derby.
It would be good to have a tool which efficiently bulk-copies the foreign data into Derby.
This would be faster than having to dump the foreign data into flat files and then import
those files into Derby. In addition, many data integration applications need to siphon new
data out of foreign database on an ongoing basis. A tool based around a RestrictedVTI would
be able to push the column projection and WHERE clause into the foreign database in order
to speed up the siphoning. I will attach a Restricted VTI which can be used for the following
tasks:
> 1) Initial bulk-loading of Derby from a foreign database.
> 2) Efficient on-going data integration.
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